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TROUBLESHOOTING
① If “Self-diagnostic function key” are pressed simultaneously for 8 seconds, self-diagnosis will be
selected.
2-1) If “Self-diagnostic function key” are pressed simultaneously for 6 seconds during normal operation, the
temperature setting display will operate for 2 seconds (ON/OFF 0.5sec each). If “Self-diagnostic function
key” are pressed simultaneously for 8 seconds (including above 2 seconds), self-diagnostic function will
be selected.
2-2) At this moment, self-diagnostic function will be returned with buzzer sound 'ding-dong'.
If there is an error, display of error will be operated for 30 seconds and then return to normal condition
whether problem is corrected or not.
(Refer to self-diagnosis CHECK LIST)
2-3) Input by button is not accepted during self-diagnostic function.